Exam1 - First Hourly Examination Chemistry S-20 July 2,...

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First Hourly Examination Chemistry S-20 July 2, 2007 8:10 — 9:20 a.m. Name: IDNumber: Section TF: Important Notes: 1. This examconsists of 8 problems on 8 pages, plus this cover sheet, and one page for scratch work at the end of the exam. 2. All answers must be written in the spaces provided. Do not write anything in red ink. Answers wr ittenonthebackofapagew i l l not be graded. Anything written on the scratch page will be graded. 3. You are allowed to use a set of molecular models for this exam. Problem 1. 2. 3. 4. 5. 6. 7. 8. Score ____________ / 12 ____________ / 14 ____________ / 15 ____________ / 10 Total Score: ________________ / 100
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Chemistry S-20 1 Name: _______ / 12 1. l . For each of the following species, provide a complete Lewis structure ,show ing all atoms, bonds, and one pairs. Draw the best alternate resonance structure in the other box. Include all nonzero formal charges a) b) c) Complete Lewis Structure: Best Alternate Resonance Structure: Complete Lewis Structure: Best Alternate Resonance Structure: Complete Lewis Structure: Best Alternate Resonance Structure: CNO NH O 2 2
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Chemistry S-20 2 2. For each of the following molecules, circle and identify all the functional groups in the molecule. Then write the hybridization of each of the indicated atoms in the boxes provided. Name: _______ / 14 O HO O O O H O O
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3 Chemistry S-20 _______ / 15 Name: c) 1 equiv. base 1 equiv. base 1 equiv. base a) b) 3. Each of the following molecules is treated with one molar equivalent of
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Exam1 - First Hourly Examination Chemistry S-20 July 2,...

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